/*!
 * Chart.js
 * http://chartjs.org/
 *
 * Copyright 2013 Nick Downie
 * Released under the MIT license
 * https://github.com/nnnick/Chart.js/blob/master/LICENSE.md
 */

//Define the global Chart Variable as a class.
var Chart = function(context){

    var chart = this;


    //Easing functions adapted from Robert Penner's easing equations
    //http://www.robertpenner.com/easing/

    var animationOptions = {
        linear : function (t){
            return t;
        },
        easeInQuad: function (t) {
            return t*t;
        },
        easeOutQuad: function (t) {
            return -1 *t*(t-2);
        },
        easeInOutQuad: function (t) {
            if ((t/=1/2) < 1) return 1/2*t*t;
            return -1/2 * ((--t)*(t-2) - 1);
        },
        easeInCubic: function (t) {
            return t*t*t;
        },
        easeOutCubic: function (t) {
            return 1*((t=t/1-1)*t*t + 1);
        },
        easeInOutCubic: function (t) {
            if ((t/=1/2) < 1) return 1/2*t*t*t;
            return 1/2*((t-=2)*t*t + 2);
        },
        easeInQuart: function (t) {
            return t*t*t*t;
        },
        easeOutQuart: function (t) {
            return -1 * ((t=t/1-1)*t*t*t - 1);
        },
        easeInOutQuart: function (t) {
            if ((t/=1/2) < 1) return 1/2*t*t*t*t;
            return -1/2 * ((t-=2)*t*t*t - 2);
        },
        easeInQuint: function (t) {
            return 1*(t/=1)*t*t*t*t;
        },
        easeOutQuint: function (t) {
            return 1*((t=t/1-1)*t*t*t*t + 1);
        },
        easeInOutQuint: function (t) {
            if ((t/=1/2) < 1) return 1/2*t*t*t*t*t;
            return 1/2*((t-=2)*t*t*t*t + 2);
        },
        easeInSine: function (t) {
            return -1 * Math.cos(t/1 * (Math.PI/2)) + 1;
        },
        easeOutSine: function (t) {
            return 1 * Math.sin(t/1 * (Math.PI/2));
        },
        easeInOutSine: function (t) {
            return -1/2 * (Math.cos(Math.PI*t/1) - 1);
        },
        easeInExpo: function (t) {
            return (t==0) ? 1 : 1 * Math.pow(2, 10 * (t/1 - 1));
        },
        easeOutExpo: function (t) {
            return (t==1) ? 1 : 1 * (-Math.pow(2, -10 * t/1) + 1);
        },
        easeInOutExpo: function (t) {
            if (t==0) return 0;
            if (t==1) return 1;
            if ((t/=1/2) < 1) return 1/2 * Math.pow(2, 10 * (t - 1));
            return 1/2 * (-Math.pow(2, -10 * --t) + 2);
        },
        easeInCirc: function (t) {
            if (t>=1) return t;
            return -1 * (Math.sqrt(1 - (t/=1)*t) - 1);
        },
        easeOutCirc: function (t) {
            return 1 * Math.sqrt(1 - (t=t/1-1)*t);
        },
        easeInOutCirc: function (t) {
            if ((t/=1/2) < 1) return -1/2 * (Math.sqrt(1 - t*t) - 1);
            return 1/2 * (Math.sqrt(1 - (t-=2)*t) + 1);
        },
        easeInElastic: function (t) {
            var s=1.70158;var p=0;var a=1;
            if (t==0) return 0;  if ((t/=1)==1) return 1;  if (!p) p=1*.3;
            if (a < Math.abs(1)) { a=1; var s=p/4; }
            else var s = p/(2*Math.PI) * Math.asin (1/a);
            return -(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*1-s)*(2*Math.PI)/p ));
        },
        easeOutElastic: function (t) {
            var s=1.70158;var p=0;var a=1;
            if (t==0) return 0;  if ((t/=1)==1) return 1;  if (!p) p=1*.3;
            if (a < Math.abs(1)) { a=1; var s=p/4; }
            else var s = p/(2*Math.PI) * Math.asin (1/a);
            return a*Math.pow(2,-10*t) * Math.sin( (t*1-s)*(2*Math.PI)/p ) + 1;
        },
        easeInOutElastic: function (t) {
            var s=1.70158;var p=0;var a=1;
            if (t==0) return 0;  if ((t/=1/2)==2) return 1;  if (!p) p=1*(.3*1.5);
            if (a < Math.abs(1)) { a=1; var s=p/4; }
            else var s = p/(2*Math.PI) * Math.asin (1/a);
            if (t < 1) return -.5*(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*1-s)*(2*Math.PI)/p ));
            return a*Math.pow(2,-10*(t-=1)) * Math.sin( (t*1-s)*(2*Math.PI)/p )*.5 + 1;
        },
        easeInBack: function (t) {
            var s = 1.70158;
            return 1*(t/=1)*t*((s+1)*t - s);
        },
        easeOutBack: function (t) {
            var s = 1.70158;
            return 1*((t=t/1-1)*t*((s+1)*t + s) + 1);
        },
        easeInOutBack: function (t) {
            var s = 1.70158;
            if ((t/=1/2) < 1) return 1/2*(t*t*(((s*=(1.525))+1)*t - s));
            return 1/2*((t-=2)*t*(((s*=(1.525))+1)*t + s) + 2);
        },
        easeInBounce: function (t) {
            return 1 - animationOptions.easeOutBounce (1-t);
        },
        easeOutBounce: function (t) {
            if ((t/=1) < (1/2.75)) {
                return 1*(7.5625*t*t);
            } else if (t < (2/2.75)) {
                return 1*(7.5625*(t-=(1.5/2.75))*t + .75);
            } else if (t < (2.5/2.75)) {
                return 1*(7.5625*(t-=(2.25/2.75))*t + .9375);
            } else {
                return 1*(7.5625*(t-=(2.625/2.75))*t + .984375);
            }
        },
        easeInOutBounce: function (t) {
            if (t < 1/2) return animationOptions.easeInBounce (t*2) * .5;
            return animationOptions.easeOutBounce (t*2-1) * .5 + 1*.5;
        }
    };

    //Variables global to the chart
    var width = context.canvas.width;
    var height = context.canvas.height;


    //High pixel density displays - multiply the size of the canvas height/width by the device pixel ratio, then scale.
    if (window.devicePixelRatio) {
        context.canvas.style.width = width + "px";
        context.canvas.style.height = height + "px";
        context.canvas.height = height * window.devicePixelRatio;
        context.canvas.width = width * window.devicePixelRatio;
        context.scale(window.devicePixelRatio, window.devicePixelRatio);
    }

    this.PolarArea = function(data,options){

        chart.PolarArea.defaults = {
            scaleOverlay : true,
            scaleOverride : false,
            scaleSteps : null,
            scaleStepWidth : null,
            scaleStartValue : null,
            scaleShowLine : true,
            scaleLineColor : "rgba(0,0,0,.1)",
            scaleLineWidth : 1,
            scaleShowLabels : true,
            scaleLabel : "<%=value%>",
            scaleFontFamily : "'Arial'",
            scaleFontSize : 12,
            scaleFontStyle : "normal",
            scaleFontColor : "#666",
            scaleShowLabelBackdrop : true,
            scaleBackdropColor : "rgba(255,255,255,0.75)",
            scaleBackdropPaddingY : 2,
            scaleBackdropPaddingX : 2,
            segmentShowStroke : true,
            segmentStrokeColor : "#fff",
            segmentStrokeWidth : 2,
            animation : true,
            animationSteps : 100,
            animationEasing : "easeOutBounce",
            animateRotate : true,
            animateScale : false,
            onAnimationComplete : null
        };

        var config = (options)? mergeChartConfig(chart.PolarArea.defaults,options) : chart.PolarArea.defaults;

        return new PolarArea(data,config,context);
    };

    this.Radar = function(data,options){

        chart.Radar.defaults = {
            scaleOverlay : false,
            scaleOverride : false,
            scaleSteps : null,
            scaleStepWidth : null,
            scaleStartValue : null,
            scaleShowLine : true,
            scaleLineColor : "rgba(0,0,0,.1)",
            scaleLineWidth : 1,
            scaleShowLabels : false,
            scaleLabel : "<%=value%>",
            scaleFontFamily : "'Arial'",
            scaleFontSize : 12,
            scaleFontStyle : "normal",
            scaleFontColor : "#666",
            scaleShowLabelBackdrop : true,
            scaleBackdropColor : "rgba(255,255,255,0.75)",
            scaleBackdropPaddingY : 2,
            scaleBackdropPaddingX : 2,
            angleShowLineOut : true,
            angleLineColor : "rgba(0,0,0,.1)",
            angleLineWidth : 1,
            pointLabelFontFamily : "'Arial'",
            pointLabelFontStyle : "normal",
            pointLabelFontSize : 12,
            pointLabelFontColor : "#666",
            pointDot : true,
            pointDotRadius : 3,
            pointDotStrokeWidth : 1,
            datasetStroke : true,
            datasetStrokeWidth : 2,
            datasetFill : true,
            animation : true,
            animationSteps : 60,
            animationEasing : "easeOutQuart",
            onAnimationComplete : null
        };

        var config = (options)? mergeChartConfig(chart.Radar.defaults,options) : chart.Radar.defaults;

        return new Radar(data,config,context);
    };

    this.Pie = function(data,options){
        chart.Pie.defaults = {
            segmentShowStroke : true,
            segmentStrokeColor : "#fff",
            segmentStrokeWidth : 2,
            animation : true,
            animationSteps : 100,
            animationEasing : "easeOutBounce",
            animateRotate : true,
            animateScale : false,
            onAnimationComplete : null
        };

        var config = (options)? mergeChartConfig(chart.Pie.defaults,options) : chart.Pie.defaults;

        return new Pie(data,config,context);
    };

    this.Doughnut = function(data,options){

        chart.Doughnut.defaults = {
            segmentShowStroke : true,
            segmentStrokeColor : "#fff",
            segmentStrokeWidth : 2,
            percentageInnerCutout : 50,
            animation : true,
            animationSteps : 100,
            animationEasing : "easeOutBounce",
            animateRotate : true,
            animateScale : false,
            onAnimationComplete : null
        };

        var config = (options)? mergeChartConfig(chart.Doughnut.defaults,options) : chart.Doughnut.defaults;

        return new Doughnut(data,config,context);

    };

    this.Line = function(data,options){

        chart.Line.defaults = {
            scaleOverlay : false,
            scaleOverride : false,
            scaleSteps : null,
            scaleStepWidth : null,
            scaleStartValue : null,
            scaleLineColor : "rgba(0,0,0,.1)",
            scaleLineWidth : 1,
            scaleShowLabels : true,
            scaleLabel : "<%=value%>",
            scaleFontFamily : "'Arial'",
            scaleFontSize : 12,
            scaleFontStyle : "normal",
            scaleFontColor : "#666",
            scaleShowGridLines : true,
            scaleGridLineColor : "rgba(0,0,0,.05)",
            scaleGridLineWidth : 1,
            bezierCurve : true,
            pointDot : true,
            pointDotRadius : 4,
            pointDotStrokeWidth : 2,
            datasetStroke : true,
            datasetStrokeWidth : 2,
            datasetFill : true,
            animation : true,
            animationSteps : 60,
            animationEasing : "easeOutQuart",
            onAnimationComplete : null
        };
        var config = (options) ? mergeChartConfig(chart.Line.defaults,options) : chart.Line.defaults;

        return new Line(data,config,context);
    }

    this.Bar = function(data,options){
        chart.Bar.defaults = {
            scaleOverlay : false,
            scaleOverride : false,
            scaleSteps : null,
            scaleStepWidth : null,
            scaleStartValue : null,
            scaleLineColor : "rgba(0,0,0,.1)",
            scaleLineWidth : 1,
            scaleShowLabels : true,
            scaleLabel : "<%=value%>",
            scaleFontFamily : "'Arial'",
            scaleFontSize : 12,
            scaleFontStyle : "normal",
            scaleFontColor : "#666",
            scaleShowGridLines : true,
            scaleGridLineColor : "rgba(0,0,0,.05)",
            scaleGridLineWidth : 1,
            barShowStroke : true,
            barStrokeWidth : 2,
            barValueSpacing : 5,
            barDatasetSpacing : 1,
            animation : true,
            animationSteps : 60,
            animationEasing : "easeOutQuart",
            onAnimationComplete : null
        };
        var config = (options) ? mergeChartConfig(chart.Bar.defaults,options) : chart.Bar.defaults;

        return new Bar(data,config,context);
    }

    var clear = function(c){
        c.clearRect(0, 0, width, height);
    };

    var PolarArea = function(data,config,ctx){
        var maxSize, scaleHop, calculatedScale, labelHeight, scaleHeight, valueBounds, labelTemplateString;


        calculateDrawingSizes();

        valueBounds = getValueBounds();

        labelTemplateString = (config.scaleShowLabels)? config.scaleLabel : null;

        //Check and set the scale
        if (!config.scaleOverride){

            calculatedScale = calculateScale(scaleHeight,valueBounds.maxSteps,valueBounds.minSteps,valueBounds.maxValue,valueBounds.minValue,labelTemplateString);
        }
        else {
            calculatedScale = {
                steps : config.scaleSteps,
                stepValue : config.scaleStepWidth,
                graphMin : config.scaleStartValue,
                labels : []
            }
            for (var i=0; i<calculatedScale.steps; i++){
                if(labelTemplateString){
                    calculatedScale.labels.push(tmpl(labelTemplateString,{value:(config.scaleStartValue + (config.scaleStepWidth * i)).toFixed(getDecimalPlaces (config.scaleStepWidth))}));
                }
            }
        }

        scaleHop = maxSize/(calculatedScale.steps);

        //Wrap in an animation loop wrapper
        animationLoop(config,drawScale,drawAllSegments,ctx);

        function calculateDrawingSizes(){
            maxSize = (Min([width,height])/2);
            //Remove whatever is larger - the font size or line width.

            maxSize -= Max([config.scaleFontSize*0.5,config.scaleLineWidth*0.5]);

            labelHeight = config.scaleFontSize*2;
            //If we're drawing the backdrop - add the Y padding to the label height and remove from drawing region.
            if (config.scaleShowLabelBackdrop){
                labelHeight += (2 * config.scaleBackdropPaddingY);
                maxSize -= config.scaleBackdropPaddingY*1.5;
            }

            scaleHeight = maxSize;
            //If the label height is less than 5, set it to 5 so we don't have lines on top of each other.
            labelHeight = Default(labelHeight,5);
        }
        function drawScale(){
            for (var i=0; i<calculatedScale.steps; i++){
                //If the line object is there
                if (config.scaleShowLine){
                    ctx.beginPath();
                    ctx.arc(width/2, height/2, scaleHop * (i + 1), 0, (Math.PI * 2), true);
                    ctx.strokeStyle = config.scaleLineColor;
                    ctx.lineWidth = config.scaleLineWidth;
                    ctx.stroke();
                }

                if (config.scaleShowLabels){
                    ctx.textAlign = "center";
                    ctx.font = config.scaleFontStyle + " " + config.scaleFontSize + "px " + config.scaleFontFamily;
                    var label =  calculatedScale.labels[i];
                    //If the backdrop object is within the font object
                    if (config.scaleShowLabelBackdrop){
                        var textWidth = ctx.measureText(label).width;
                        ctx.fillStyle = config.scaleBackdropColor;
                        ctx.beginPath();
                        ctx.rect(
                            Math.round(width/2 - textWidth/2 - config.scaleBackdropPaddingX),     //X
                            Math.round(height/2 - (scaleHop * (i + 1)) - config.scaleFontSize*0.5 - config.scaleBackdropPaddingY),//Y
                            Math.round(textWidth + (config.scaleBackdropPaddingX*2)), //Width
                            Math.round(config.scaleFontSize + (config.scaleBackdropPaddingY*2)) //Height
                        );
                        ctx.fill();
                    }
                    ctx.textBaseline = "middle";
                    ctx.fillStyle = config.scaleFontColor;
                    ctx.fillText(label,width/2,height/2 - (scaleHop * (i + 1)));
                }
            }
        }
        function drawAllSegments(animationDecimal){
            var startAngle = -Math.PI/2,
                angleStep = (Math.PI*2)/data.length,
                scaleAnimation = 1,
                rotateAnimation = 1;
            if (config.animation) {
                if (config.animateScale) {
                    scaleAnimation = animationDecimal;
                }
                if (config.animateRotate){
                    rotateAnimation = animationDecimal;
                }
            }

            for (var i=0; i<data.length; i++){

                ctx.beginPath();
                ctx.arc(width/2,height/2,scaleAnimation * calculateOffset(data[i].value,calculatedScale,scaleHop),startAngle, startAngle + rotateAnimation*angleStep, false);
                ctx.lineTo(width/2,height/2);
                ctx.closePath();
                ctx.fillStyle = data[i].color;
                ctx.fill();

                if(config.segmentShowStroke){
                    ctx.strokeStyle = config.segmentStrokeColor;
                    ctx.lineWidth = config.segmentStrokeWidth;
                    ctx.stroke();
                }
                startAngle += rotateAnimation*angleStep;
            }
        }
        function getValueBounds() {
            var upperValue = Number.MIN_VALUE;
            var lowerValue = Number.MAX_VALUE;
            for (var i=0; i<data.length; i++){
                if (data[i].value > upperValue) {upperValue = data[i].value;}
                if (data[i].value < lowerValue) {lowerValue = data[i].value;}
            };

            var maxSteps = Math.floor((scaleHeight / (labelHeight*0.66)));
            var minSteps = Math.floor((scaleHeight / labelHeight*0.5));

            return {
                maxValue : upperValue,
                minValue : lowerValue,
                maxSteps : maxSteps,
                minSteps : minSteps
            };


        }
    }

    var Radar = function (data,config,ctx) {
        var maxSize, scaleHop, calculatedScale, labelHeight, scaleHeight, valueBounds, labelTemplateString;

        //If no labels are defined set to an empty array, so referencing length for looping doesn't blow up.
        if (!data.labels) data.labels = [];

        calculateDrawingSizes();

        var valueBounds = getValueBounds();

        labelTemplateString = (config.scaleShowLabels)? config.scaleLabel : null;

        //Check and set the scale
        if (!config.scaleOverride){

            calculatedScale = calculateScale(scaleHeight,valueBounds.maxSteps,valueBounds.minSteps,valueBounds.maxValue,valueBounds.minValue,labelTemplateString);
        }
        else {
            calculatedScale = {
                steps : config.scaleSteps,
                stepValue : config.scaleStepWidth,
                graphMin : config.scaleStartValue,
                labels : []
            }
            for (var i=0; i<calculatedScale.steps; i++){
                if(labelTemplateString){
                    calculatedScale.labels.push(tmpl(labelTemplateString,{value:(config.scaleStartValue + (config.scaleStepWidth * i)).toFixed(getDecimalPlaces (config.scaleStepWidth))}));
                }
            }
        }

        scaleHop = maxSize/(calculatedScale.steps);

        animationLoop(config,drawScale,drawAllDataPoints,ctx);

        //Radar specific functions.
        function drawAllDataPoints(animationDecimal){
            var rotationDegree = (2*Math.PI)/data.datasets[0].data.length;

            ctx.save();
            //translate to the centre of the canvas.
            ctx.translate(width/2,height/2);

            //We accept multiple data sets for radar charts, so show loop through each set
            for (var i=0; i<data.datasets.length; i++){
                ctx.beginPath();

                ctx.moveTo(0,animationDecimal*(-1*calculateOffset(data.datasets[i].data[0],calculatedScale,scaleHop)));
                for (var j=1; j<data.datasets[i].data.length; j++){
                    ctx.rotate(rotationDegree);
                    ctx.lineTo(0,animationDecimal*(-1*calculateOffset(data.datasets[i].data[j],calculatedScale,scaleHop)));

                }
                ctx.closePath();


                ctx.fillStyle = data.datasets[i].fillColor;
                ctx.strokeStyle = data.datasets[i].strokeColor;
                ctx.lineWidth = config.datasetStrokeWidth;
                ctx.fill();
                ctx.stroke();


                if (config.pointDot){
                    ctx.fillStyle = data.datasets[i].pointColor;
                    ctx.strokeStyle = data.datasets[i].pointStrokeColor;
                    ctx.lineWidth = config.pointDotStrokeWidth;
                    for (var k=0; k<data.datasets[i].data.length; k++){
                        ctx.rotate(rotationDegree);
                        ctx.beginPath();
                        ctx.arc(0,animationDecimal*(-1*calculateOffset(data.datasets[i].data[k],calculatedScale,scaleHop)),config.pointDotRadius,2*Math.PI,false);
                        ctx.fill();
                        ctx.stroke();
                    }

                }
                ctx.rotate(rotationDegree);

            }
            ctx.restore();


        }
        function drawScale(){
            var rotationDegree = (2*Math.PI)/data.datasets[0].data.length;
            ctx.save();
            ctx.translate(width / 2, height / 2);

            if (config.angleShowLineOut){
                ctx.strokeStyle = config.angleLineColor;
                ctx.lineWidth = config.angleLineWidth;
                for (var h=0; h<data.datasets[0].data.length; h++){

                    ctx.rotate(rotationDegree);
                    ctx.beginPath();
                    ctx.moveTo(0,0);
                    ctx.lineTo(0,-maxSize);
                    ctx.stroke();
                }
            }

            for (var i=0; i<calculatedScale.steps; i++){
                ctx.beginPath();

                if(config.scaleShowLine){
                    ctx.strokeStyle = config.scaleLineColor;
                    ctx.lineWidth = config.scaleLineWidth;
                    ctx.moveTo(0,-scaleHop * (i+1));
                    for (var j=0; j<data.datasets[0].data.length; j++){
                        ctx.rotate(rotationDegree);
                        ctx.lineTo(0,-scaleHop * (i+1));
                    }
                    ctx.closePath();
                    ctx.stroke();

                }

                if (config.scaleShowLabels){
                    ctx.textAlign = 'center';
                    ctx.font = config.scaleFontStyle + " " + config.scaleFontSize+"px " + config.scaleFontFamily;
                    ctx.textBaseline = "middle";

                    if (config.scaleShowLabelBackdrop){
                        var textWidth = ctx.measureText(calculatedScale.labels[i]).width;
                        ctx.fillStyle = config.scaleBackdropColor;
                        ctx.beginPath();
                        ctx.rect(
                            Math.round(- textWidth/2 - config.scaleBackdropPaddingX),     //X
                            Math.round((-scaleHop * (i + 1)) - config.scaleFontSize*0.5 - config.scaleBackdropPaddingY),//Y
                            Math.round(textWidth + (config.scaleBackdropPaddingX*2)), //Width
                            Math.round(config.scaleFontSize + (config.scaleBackdropPaddingY*2)) //Height
                        );
                        ctx.fill();
                    }
                    ctx.fillStyle = config.scaleFontColor;
                    ctx.fillText(calculatedScale.labels[i],0,-scaleHop*(i+1));
                }

            }
            for (var k=0; k<data.labels.length; k++){
                ctx.font = config.pointLabelFontStyle + " " + config.pointLabelFontSize+"px " + config.pointLabelFontFamily;
                ctx.fillStyle = config.pointLabelFontColor;
                var opposite = Math.sin(rotationDegree*k) * (maxSize + config.pointLabelFontSize);
                var adjacent = Math.cos(rotationDegree*k) * (maxSize + config.pointLabelFontSize);

                if(rotationDegree*k == Math.PI || rotationDegree*k == 0){
                    ctx.textAlign = "center";
                }
                else if(rotationDegree*k > Math.PI){
                    ctx.textAlign = "right";
                }
                else{
                    ctx.textAlign = "left";
                }

                ctx.textBaseline = "middle";

                ctx.fillText(data.labels[k],opposite,-adjacent);

            }
            ctx.restore();
        };
        function calculateDrawingSizes(){
            maxSize = (Min([width,height])/2);

            labelHeight = config.scaleFontSize*2;

            var labelLength = 0;
            for (var i=0; i<data.labels.length; i++){
                ctx.font = config.pointLabelFontStyle + " " + config.pointLabelFontSize+"px " + config.pointLabelFontFamily;
                var textMeasurement = ctx.measureText(data.labels[i]).width;
                if(textMeasurement>labelLength) labelLength = textMeasurement;
            }

            //Figure out whats the largest - the height of the text or the width of what's there, and minus it from the maximum usable size.
            maxSize -= Max([labelLength,((config.pointLabelFontSize/2)*1.5)]);

            maxSize -= config.pointLabelFontSize;
            maxSize = CapValue(maxSize, null, 0);
            scaleHeight = maxSize;
            //If the label height is less than 5, set it to 5 so we don't have lines on top of each other.
            labelHeight = Default(labelHeight,5);
        };
        function getValueBounds() {
            var upperValue = Number.MIN_VALUE;
            var lowerValue = Number.MAX_VALUE;

            for (var i=0; i<data.datasets.length; i++){
                for (var j=0; j<data.datasets[i].data.length; j++){
                    if (data.datasets[i].data[j] > upperValue){upperValue = data.datasets[i].data[j]}
                    if (data.datasets[i].data[j] < lowerValue){lowerValue = data.datasets[i].data[j]}
                }
            }

            var maxSteps = Math.floor((scaleHeight / (labelHeight*0.66)));
            var minSteps = Math.floor((scaleHeight / labelHeight*0.5));

            return {
                maxValue : upperValue,
                minValue : lowerValue,
                maxSteps : maxSteps,
                minSteps : minSteps
            };


        }
    }

    var Pie = function(data,config,ctx){
        var segmentTotal = 0;

        //In case we have a canvas that is not a square. Minus 5 pixels as padding round the edge.
        var pieRadius = Min([height/2,width/2]) - 5;

        for (var i=0; i<data.length; i++){
            segmentTotal += data[i].value;
        }


        animationLoop(config,null,drawPieSegments,ctx);

        function drawPieSegments (animationDecimal){
            var cumulativeAngle = -Math.PI/2,
                scaleAnimation = 1,
                rotateAnimation = 1;
            if (config.animation) {
                if (config.animateScale) {
                    scaleAnimation = animationDecimal;
                }
                if (config.animateRotate){
                    rotateAnimation = animationDecimal;
                }
            }
            for (var i=0; i<data.length; i++){
                var segmentAngle = rotateAnimation * ((data[i].value/segmentTotal) * (Math.PI*2));
                ctx.beginPath();
                ctx.arc(width/2,height/2,scaleAnimation * pieRadius,cumulativeAngle,cumulativeAngle + segmentAngle);
                ctx.lineTo(width/2,height/2);
                ctx.closePath();
                ctx.fillStyle = data[i].color;
                ctx.fill();

                if(config.segmentShowStroke){
                    ctx.lineWidth = config.segmentStrokeWidth;
                    ctx.strokeStyle = config.segmentStrokeColor;
                    ctx.stroke();
                }
                cumulativeAngle += segmentAngle;
            }
        }
    }

    var Doughnut = function(data,config,ctx){
        var segmentTotal = 0;

        //In case we have a canvas that is not a square. Minus 5 pixels as padding round the edge.
        var doughnutRadius = Min([height/2,width/2]) - 5;

        var cutoutRadius = doughnutRadius * (config.percentageInnerCutout/100);

        for (var i=0; i<data.length; i++){
            segmentTotal += data[i].value;
        }


        animationLoop(config,null,drawPieSegments,ctx);


        function drawPieSegments (animationDecimal){
            var cumulativeAngle = -Math.PI/2,
                scaleAnimation = 1,
                rotateAnimation = 1;
            if (config.animation) {
                if (config.animateScale) {
                    scaleAnimation = animationDecimal;
                }
                if (config.animateRotate){
                    rotateAnimation = animationDecimal;
                }
            }
            for (var i=0; i<data.length; i++){
                var segmentAngle = rotateAnimation * ((data[i].value/segmentTotal) * (Math.PI*2));
                ctx.beginPath();
                ctx.arc(width/2,height/2,scaleAnimation * doughnutRadius,cumulativeAngle,cumulativeAngle + segmentAngle,false);
                ctx.arc(width/2,height/2,scaleAnimation * cutoutRadius,cumulativeAngle + segmentAngle,cumulativeAngle,true);
                ctx.closePath();
                ctx.fillStyle = data[i].color;
                ctx.fill();

                if(config.segmentShowStroke){
                    ctx.lineWidth = config.segmentStrokeWidth;
                    ctx.strokeStyle = config.segmentStrokeColor;
                    ctx.stroke();
                }
                cumulativeAngle += segmentAngle;
            }
        }



    }

    var Line = function(data,config,ctx){
        var maxSize, scaleHop, calculatedScale, labelHeight, scaleHeight, valueBounds, labelTemplateString, valueHop,widestXLabel, xAxisLength,yAxisPosX,xAxisPosY, rotateLabels = 0;

        calculateDrawingSizes();

        valueBounds = getValueBounds();
        //Check and set the scale
        labelTemplateString = (config.scaleShowLabels)? config.scaleLabel : "";
        if (!config.scaleOverride){

            calculatedScale = calculateScale(scaleHeight,valueBounds.maxSteps,valueBounds.minSteps,valueBounds.maxValue,valueBounds.minValue,labelTemplateString);
        }
        else {
            calculatedScale = {
                steps : config.scaleSteps,
                stepValue : config.scaleStepWidth,
                graphMin : config.scaleStartValue,
                labels : []
            }
            for (var i=0; i<calculatedScale.steps; i++){
                if(labelTemplateString){
                    calculatedScale.labels.push(tmpl(labelTemplateString,{value:(config.scaleStartValue + (config.scaleStepWidth * i)).toFixed(getDecimalPlaces (config.scaleStepWidth))}));
                }
            }
        }

        scaleHop = Math.floor(scaleHeight/calculatedScale.steps);
        calculateXAxisSize();
        animationLoop(config,drawScale,drawLines,ctx);

        function drawLines(animPc){
            for (var i=0; i<data.datasets.length; i++){
                ctx.strokeStyle = data.datasets[i].strokeColor;
                ctx.lineWidth = config.datasetStrokeWidth;
                ctx.beginPath();
                ctx.moveTo(yAxisPosX, xAxisPosY - animPc*(calculateOffset(data.datasets[i].data[0],calculatedScale,scaleHop)))

                for (var j=1; j<data.datasets[i].data.length; j++){
                    if (config.bezierCurve){
                        ctx.bezierCurveTo(xPos(j-0.5),yPos(i,j-1),xPos(j-0.5),yPos(i,j),xPos(j),yPos(i,j));
                    }
                    else{
                        ctx.lineTo(xPos(j),yPos(i,j));
                    }
                }
                ctx.stroke();
                if (config.datasetFill){
                    ctx.lineTo(yAxisPosX + (valueHop*(data.datasets[i].data.length-1)),xAxisPosY);
                    ctx.lineTo(yAxisPosX,xAxisPosY);
                    ctx.closePath();
                    ctx.fillStyle = data.datasets[i].fillColor;
                    ctx.fill();
                }
                else{
                    ctx.closePath();
                }
                if(config.pointDot){
                    ctx.fillStyle = data.datasets[i].pointColor;
                    ctx.strokeStyle = data.datasets[i].pointStrokeColor;
                    ctx.lineWidth = config.pointDotStrokeWidth;
                    for (var k=0; k<data.datasets[i].data.length; k++){
                        ctx.beginPath();
                        ctx.arc(yAxisPosX + (valueHop *k),xAxisPosY - animPc*(calculateOffset(data.datasets[i].data[k],calculatedScale,scaleHop)),config.pointDotRadius,0,Math.PI*2,true);
                        ctx.fill();
                        ctx.stroke();
                    }
                }
            }

            function yPos(dataSet,iteration){
                return xAxisPosY - animPc*(calculateOffset(data.datasets[dataSet].data[iteration],calculatedScale,scaleHop));
            }
            function xPos(iteration){
                return yAxisPosX + (valueHop * iteration);
            }
        }
        function drawScale(){
            //X axis line
            ctx.lineWidth = config.scaleLineWidth;
            ctx.strokeStyle = config.scaleLineColor;
            ctx.beginPath();
            ctx.moveTo(width-widestXLabel/2+5,xAxisPosY);
            ctx.lineTo(width-(widestXLabel/2)-xAxisLength-5,xAxisPosY);
            ctx.stroke();


            if (rotateLabels > 0){
                ctx.save();
                ctx.textAlign = "right";
            }
            else{
                ctx.textAlign = "center";
            }
            ctx.fillStyle = config.scaleFontColor;
            for (var i=0; i<data.labels.length; i++){
                ctx.save();
                if (rotateLabels > 0){
                    ctx.translate(yAxisPosX + i*valueHop,xAxisPosY + config.scaleFontSize);
                    ctx.rotate(-(rotateLabels * (Math.PI/180)));
                    ctx.fillText(data.labels[i], 0,0);
                    ctx.restore();
                }

                else{
                    ctx.fillText(data.labels[i], yAxisPosX + i*valueHop,xAxisPosY + config.scaleFontSize+3);
                }

                ctx.beginPath();
                ctx.moveTo(yAxisPosX + i * valueHop, xAxisPosY+3);

                //Check i isnt 0, so we dont go over the Y axis twice.
                if(config.scaleShowGridLines && i>0){
                    ctx.lineWidth = config.scaleGridLineWidth;
                    ctx.strokeStyle = config.scaleGridLineColor;
                    ctx.lineTo(yAxisPosX + i * valueHop, 5);
                }
                else{
                    ctx.lineTo(yAxisPosX + i * valueHop, xAxisPosY+3);
                }
                ctx.stroke();
            }

            //Y axis
            ctx.lineWidth = config.scaleLineWidth;
            ctx.strokeStyle = config.scaleLineColor;
            ctx.beginPath();
            ctx.moveTo(yAxisPosX,xAxisPosY+5);
            ctx.lineTo(yAxisPosX,5);
            ctx.stroke();

            ctx.textAlign = "right";
            ctx.textBaseline = "middle";
            for (var j=0; j<calculatedScale.steps; j++){
                ctx.beginPath();
                ctx.moveTo(yAxisPosX-3,xAxisPosY - ((j+1) * scaleHop));
                if (config.scaleShowGridLines){
                    ctx.lineWidth = config.scaleGridLineWidth;
                    ctx.strokeStyle = config.scaleGridLineColor;
                    ctx.lineTo(yAxisPosX + xAxisLength + 5,xAxisPosY - ((j+1) * scaleHop));
                }
                else{
                    ctx.lineTo(yAxisPosX-0.5,xAxisPosY - ((j+1) * scaleHop));
                }

                ctx.stroke();

                if (config.scaleShowLabels){
                    ctx.fillText(calculatedScale.labels[j],yAxisPosX-8,xAxisPosY - ((j+1) * scaleHop));
                }
            }


        }
        function calculateXAxisSize(){
            var longestText = 1;
            //if we are showing the labels
            if (config.scaleShowLabels){
                ctx.font = config.scaleFontStyle + " " + config.scaleFontSize+"px " + config.scaleFontFamily;
                for (var i=0; i<calculatedScale.labels.length; i++){
                    var measuredText = ctx.measureText(calculatedScale.labels[i]).width;
                    longestText = (measuredText > longestText)? measuredText : longestText;
                }
                //Add a little extra padding from the y axis
                longestText +=10;
            }
            xAxisLength = width - longestText - widestXLabel;
            valueHop = Math.floor(xAxisLength/(data.labels.length-1));

            yAxisPosX = width-widestXLabel/2-xAxisLength;
            xAxisPosY = scaleHeight + config.scaleFontSize/2;
        }
        function calculateDrawingSizes(){
            maxSize = height;

            //Need to check the X axis first - measure the length of each text metric, and figure out if we need to rotate by 45 degrees.
            ctx.font = config.scaleFontStyle + " " + config.scaleFontSize+"px " + config.scaleFontFamily;
            widestXLabel = 1;
            for (var i=0; i<data.labels.length; i++){
                var textLength = ctx.measureText(data.labels[i]).width;
                //If the text length is longer - make that equal to longest text!
                widestXLabel = (textLength > widestXLabel)? textLength : widestXLabel;
            }
            if (width/data.labels.length < widestXLabel){
                rotateLabels = 45;
                if (width/data.labels.length < Math.cos(rotateLabels) * widestXLabel){
                    rotateLabels = 90;
                    maxSize -= widestXLabel;
                }
                else{
                    maxSize -= Math.sin(rotateLabels) * widestXLabel;
                }
            }
            else{
                maxSize -= config.scaleFontSize;
            }

            //Add a little padding between the x line and the text
            maxSize -= 5;


            labelHeight = config.scaleFontSize;

            maxSize -= labelHeight;
            //Set 5 pixels greater than the font size to allow for a little padding from the X axis.

            scaleHeight = maxSize;

            //Then get the area above we can safely draw on.

        }
        function getValueBounds() {
            var upperValue = Number.MIN_VALUE;
            var lowerValue = Number.MAX_VALUE;
            for (var i=0; i<data.datasets.length; i++){
                for (var j=0; j<data.datasets[i].data.length; j++){
                    if ( data.datasets[i].data[j] > upperValue) { upperValue = data.datasets[i].data[j] };
                    if ( data.datasets[i].data[j] < lowerValue) { lowerValue = data.datasets[i].data[j] };
                }
            };

            var maxSteps = Math.floor((scaleHeight / (labelHeight*0.66)));
            var minSteps = Math.floor((scaleHeight / labelHeight*0.5));

            return {
                maxValue : upperValue,
                minValue : lowerValue,
                maxSteps : maxSteps,
                minSteps : minSteps
            };


        }


    }

    var Bar = function(data,config,ctx){
        var maxSize, scaleHop, calculatedScale, labelHeight, scaleHeight, valueBounds, labelTemplateString, valueHop,widestXLabel, xAxisLength,yAxisPosX,xAxisPosY,barWidth, rotateLabels = 0;

        calculateDrawingSizes();

        valueBounds = getValueBounds();
        //Check and set the scale
        labelTemplateString = (config.scaleShowLabels)? config.scaleLabel : "";
        if (!config.scaleOverride){

            calculatedScale = calculateScale(scaleHeight,valueBounds.maxSteps,valueBounds.minSteps,valueBounds.maxValue,valueBounds.minValue,labelTemplateString);
        }
        else {
            calculatedScale = {
                steps : config.scaleSteps,
                stepValue : config.scaleStepWidth,
                graphMin : config.scaleStartValue,
                labels : []
            }
            for (var i=0; i<calculatedScale.steps; i++){
                if(labelTemplateString){
                    calculatedScale.labels.push(tmpl(labelTemplateString,{value:(config.scaleStartValue + (config.scaleStepWidth * i)).toFixed(getDecimalPlaces (config.scaleStepWidth))}));
                }
            }
        }

        scaleHop = Math.floor(scaleHeight/calculatedScale.steps);
        calculateXAxisSize();
        animationLoop(config,drawScale,drawBars,ctx);

        function drawBars(animPc){
            ctx.lineWidth = config.barStrokeWidth;
            for (var i=0; i<data.datasets.length; i++){
                ctx.fillStyle = data.datasets[i].fillColor;
                ctx.strokeStyle = data.datasets[i].strokeColor;
                for (var j=0; j<data.datasets[i].data.length; j++){
                    var barOffset = yAxisPosX + config.barValueSpacing + valueHop*j + barWidth*i + config.barDatasetSpacing*i + config.barStrokeWidth*i;

                    ctx.beginPath();
                    ctx.moveTo(barOffset, xAxisPosY);
                    ctx.lineTo(barOffset, xAxisPosY - animPc*calculateOffset(data.datasets[i].data[j],calculatedScale,scaleHop)+(config.barStrokeWidth/2));
                    ctx.lineTo(barOffset + barWidth, xAxisPosY - animPc*calculateOffset(data.datasets[i].data[j],calculatedScale,scaleHop)+(config.barStrokeWidth/2));
                    ctx.lineTo(barOffset + barWidth, xAxisPosY);
                    if(config.barShowStroke){
                        ctx.stroke();
                    }
                    ctx.closePath();
                    ctx.fill();
                }
            }

        }
        function drawScale(){
            //X axis line
            ctx.lineWidth = config.scaleLineWidth;
            ctx.strokeStyle = config.scaleLineColor;
            ctx.beginPath();
            ctx.moveTo(width-widestXLabel/2+5,xAxisPosY);
            ctx.lineTo(width-(widestXLabel/2)-xAxisLength-5,xAxisPosY);
            ctx.stroke();


            if (rotateLabels > 0){
                ctx.save();
                ctx.textAlign = "right";
            }
            else{
                ctx.textAlign = "center";
            }
            ctx.fillStyle = config.scaleFontColor;
            for (var i=0; i<data.labels.length; i++){
                ctx.save();
                if (rotateLabels > 0){
                    ctx.translate(yAxisPosX + i*valueHop,xAxisPosY + config.scaleFontSize);
                    ctx.rotate(-(rotateLabels * (Math.PI/180)));
                    ctx.fillText(data.labels[i], 0,0);
                    ctx.restore();
                }

                else{
                    ctx.fillText(data.labels[i], yAxisPosX + i*valueHop + valueHop/2,xAxisPosY + config.scaleFontSize+3);
                }

                ctx.beginPath();
                ctx.moveTo(yAxisPosX + (i+1) * valueHop, xAxisPosY+3);

                //Check i isnt 0, so we dont go over the Y axis twice.
                ctx.lineWidth = config.scaleGridLineWidth;
                ctx.strokeStyle = config.scaleGridLineColor;
                ctx.lineTo(yAxisPosX + (i+1) * valueHop, 5);
                ctx.stroke();
            }

            //Y axis
            ctx.lineWidth = config.scaleLineWidth;
            ctx.strokeStyle = config.scaleLineColor;
            ctx.beginPath();
            ctx.moveTo(yAxisPosX,xAxisPosY+5);
            ctx.lineTo(yAxisPosX,5);
            ctx.stroke();

            ctx.textAlign = "right";
            ctx.textBaseline = "middle";
            for (var j=0; j<calculatedScale.steps; j++){
                ctx.beginPath();
                ctx.moveTo(yAxisPosX-3,xAxisPosY - ((j+1) * scaleHop));
                if (config.scaleShowGridLines){
                    ctx.lineWidth = config.scaleGridLineWidth;
                    ctx.strokeStyle = config.scaleGridLineColor;
                    ctx.lineTo(yAxisPosX + xAxisLength + 5,xAxisPosY - ((j+1) * scaleHop));
                }
                else{
                    ctx.lineTo(yAxisPosX-0.5,xAxisPosY - ((j+1) * scaleHop));
                }

                ctx.stroke();
                if (config.scaleShowLabels){
                    ctx.fillText(calculatedScale.labels[j],yAxisPosX-8,xAxisPosY - ((j+1) * scaleHop));
                }
            }


        }
        function calculateXAxisSize(){
            var longestText = 1;
            //if we are showing the labels
            if (config.scaleShowLabels){
                ctx.font = config.scaleFontStyle + " " + config.scaleFontSize+"px " + config.scaleFontFamily;
                for (var i=0; i<calculatedScale.labels.length; i++){
                    var measuredText = ctx.measureText(calculatedScale.labels[i]).width;
                    longestText = (measuredText > longestText)? measuredText : longestText;
                }
                //Add a little extra padding from the y axis
                longestText +=10;
            }
            xAxisLength = width - longestText - widestXLabel;
            valueHop = Math.floor(xAxisLength/(data.labels.length));

            barWidth = (valueHop - config.scaleGridLineWidth*2 - (config.barValueSpacing*2) - (config.barDatasetSpacing*data.datasets.length-1) - ((config.barStrokeWidth/2)*data.datasets.length-1))/data.datasets.length;

            yAxisPosX = width-widestXLabel/2-xAxisLength;
            xAxisPosY = scaleHeight + config.scaleFontSize/2;
        }
        function calculateDrawingSizes(){
            maxSize = height;

            //Need to check the X axis first - measure the length of each text metric, and figure out if we need to rotate by 45 degrees.
            ctx.font = config.scaleFontStyle + " " + config.scaleFontSize+"px " + config.scaleFontFamily;
            widestXLabel = 1;
            for (var i=0; i<data.labels.length; i++){
                var textLength = ctx.measureText(data.labels[i]).width;
                //If the text length is longer - make that equal to longest text!
                widestXLabel = (textLength > widestXLabel)? textLength : widestXLabel;
            }
            if (width/data.labels.length < widestXLabel){
                rotateLabels = 45;
                if (width/data.labels.length < Math.cos(rotateLabels) * widestXLabel){
                    rotateLabels = 90;
                    maxSize -= widestXLabel;
                }
                else{
                    maxSize -= Math.sin(rotateLabels) * widestXLabel;
                }
            }
            else{
                maxSize -= config.scaleFontSize;
            }

            //Add a little padding between the x line and the text
            maxSize -= 5;


            labelHeight = config.scaleFontSize;

            maxSize -= labelHeight;
            //Set 5 pixels greater than the font size to allow for a little padding from the X axis.

            scaleHeight = maxSize;

            //Then get the area above we can safely draw on.

        }
        function getValueBounds() {
            var upperValue = Number.MIN_VALUE;
            var lowerValue = Number.MAX_VALUE;
            for (var i=0; i<data.datasets.length; i++){
                for (var j=0; j<data.datasets[i].data.length; j++){
                    if ( data.datasets[i].data[j] > upperValue) { upperValue = data.datasets[i].data[j] };
                    if ( data.datasets[i].data[j] < lowerValue) { lowerValue = data.datasets[i].data[j] };
                }
            };

            var maxSteps = Math.floor((scaleHeight / (labelHeight*0.66)));
            var minSteps = Math.floor((scaleHeight / labelHeight*0.5));

            return {
                maxValue : upperValue,
                minValue : lowerValue,
                maxSteps : maxSteps,
                minSteps : minSteps
            };


        }
    }

    function calculateOffset(val,calculatedScale,scaleHop){
        var outerValue = calculatedScale.steps * calculatedScale.stepValue;
        var adjustedValue = val - calculatedScale.graphMin;
        var scalingFactor = CapValue(adjustedValue/outerValue,1,0);
        return (scaleHop*calculatedScale.steps) * scalingFactor;
    }

    function animationLoop(config,drawScale,drawData,ctx){
        var animFrameAmount = (config.animation)? 1/CapValue(config.animationSteps,Number.MAX_VALUE,1) : 1,
            easingFunction = animationOptions[config.animationEasing],
            percentAnimComplete =(config.animation)? 0 : 1;



        if (typeof drawScale !== "function") drawScale = function(){};

        requestAnimFrame(animLoop);

        function animateFrame(){
            var easeAdjustedAnimationPercent =(config.animation)? CapValue(easingFunction(percentAnimComplete),null,0) : 1;
            clear(ctx);
            if(config.scaleOverlay){
                drawData(easeAdjustedAnimationPercent);
                drawScale();
            } else {
                drawScale();
                drawData(easeAdjustedAnimationPercent);
            }
        }
        function animLoop(){
            //We need to check if the animation is incomplete (less than 1), or complete (1).
            percentAnimComplete += animFrameAmount;
            animateFrame();
            //Stop the loop continuing forever
            if (percentAnimComplete <= 1){
                requestAnimFrame(animLoop);
            }
            else{
                if (typeof config.onAnimationComplete == "function") config.onAnimationComplete();
            }

        }

    }

    //Declare global functions to be called within this namespace here.


    // shim layer with setTimeout fallback
    var requestAnimFrame = (function(){
        return window.requestAnimationFrame ||
        window.webkitRequestAnimationFrame ||
        window.mozRequestAnimationFrame ||
        window.oRequestAnimationFrame ||
        window.msRequestAnimationFrame ||
        function(callback) {
            window.setTimeout(callback, 1000 / 60);
        };
    })();

    function calculateScale(drawingHeight,maxSteps,minSteps,maxValue,minValue,labelTemplateString){
        var graphMin,graphMax,graphRange,stepValue,numberOfSteps,valueRange,rangeOrderOfMagnitude,decimalNum;

        valueRange = maxValue - minValue;

        rangeOrderOfMagnitude = calculateOrderOfMagnitude(valueRange);

        graphMin = Math.floor(minValue / (1 * Math.pow(10, rangeOrderOfMagnitude))) * Math.pow(10, rangeOrderOfMagnitude);

        graphMax = Math.ceil(maxValue / (1 * Math.pow(10, rangeOrderOfMagnitude))) * Math.pow(10, rangeOrderOfMagnitude);

        graphRange = graphMax - graphMin;

        stepValue = Math.pow(10, rangeOrderOfMagnitude);

        numberOfSteps = Math.round(graphRange / stepValue);

        //Compare number of steps to the max and min for that size graph, and add in half steps if need be.
        while(numberOfSteps < minSteps || numberOfSteps > maxSteps) {
            if (numberOfSteps < minSteps){
                stepValue /= 2;
                numberOfSteps = Math.round(graphRange/stepValue);
            }
            else{
                stepValue *=2;
                numberOfSteps = Math.round(graphRange/stepValue);
            }
        };



        //Create an array of all the labels by interpolating the string.

        var labels = [];

        if(labelTemplateString){
            //Fix floating point errors by setting to fixed the on the same decimal as the stepValue.
            for (var i=1; i<numberOfSteps+1; i++){
                labels.push(tmpl(labelTemplateString,{value:(graphMin + (stepValue*i)).toFixed(getDecimalPlaces (stepValue))}));
            }
        }

        return {
            steps : numberOfSteps,
            stepValue : stepValue,
            graphMin : graphMin,
            labels : labels

        }

        function calculateOrderOfMagnitude(val){
            return Math.floor(Math.log(val) / Math.LN10);
        }


    }

    //Max value from array
    function Max( array ){
        return Math.max.apply( Math, array );
    };
    //Min value from array
    function Min( array ){
        return Math.min.apply( Math, array );
    };
    //Default if undefined
    function Default(userDeclared,valueIfFalse){
        if(!userDeclared){
            return valueIfFalse;
        } else {
            return userDeclared;
        }
    };
    //Is a number function
    function isNumber(n) {
        return !isNaN(parseFloat(n)) && isFinite(n);
    }
    //Apply cap a value at a high or low number
    function CapValue(valueToCap, maxValue, minValue){
        if(isNumber(maxValue)) {
            if( valueToCap > maxValue ) {
                return maxValue;
            }
        }
        if(isNumber(minValue)){
            if ( valueToCap < minValue ){
                return minValue;
            }
        }
        return valueToCap;
    }
    function getDecimalPlaces (num){
        var numberOfDecimalPlaces;
        if (num%1!=0){
            return num.toString().split(".")[1].length
        }
        else{
            return 0;
        }

    }

    function mergeChartConfig(defaults,userDefined){
        var returnObj = {};
        for (var attrname in defaults) { returnObj[attrname] = defaults[attrname]; }
        for (var attrname in userDefined) { returnObj[attrname] = userDefined[attrname]; }
        return returnObj;
    }

    //Javascript micro templating by John Resig - source at http://ejohn.org/blog/javascript-micro-templating/
    var cache = {};

    function tmpl(str, data){
        // Figure out if we're getting a template, or if we need to
        // load the template - and be sure to cache the result.
        var fn = !/\W/.test(str) ?
            cache[str] = cache[str] ||
            tmpl(document.getElementById(str).innerHTML) :

            // Generate a reusable function that will serve as a template
            // generator (and which will be cached).
            new Function("obj",
                "var p=[],print=function(){p.push.apply(p,arguments);};" +

                    // Introduce the data as local variables using with(){}
                "with(obj){p.push('" +

                    // Convert the template into pure JavaScript
                str
                    .replace(/[\r\t\n]/g, " ")
                    .split("<%").join("\t")
                    .replace(/((^|%>)[^\t]*)'/g, "$1\r")
                    .replace(/\t=(.*?)%>/g, "',$1,'")
                    .split("\t").join("');")
                    .split("%>").join("p.push('")
                    .split("\r").join("\\'")
                + "');}return p.join('');");

        // Provide some basic currying to the user
        return data ? fn( data ) : fn;
    };
}


